Mechanical drive coupling



FIG. 1 is a top view of the mechanical drive coupling according to the present invention.

FIG. 2 is a bottom view of the mechanical drive coupling of FIG. 1.

FIG. 3 rear view of the mechanical drive coupling of FIG. 1.

FIG. 4 is a front view of the mechanical drive coupling of FIG. 1.

FIG. 5 is a left side view of the mechanical drive coupling of FIG. 1.

FIG. 6 is a right side view of the mechanical drive coupling of FIG. 1.

FIG. 7 is a top elevated perspective view of the mechanical drive coupling of FIG. 1; and,

FIG. 8 is a bottom elevated perspective view of the mechanical drive coupling of FIG. 1.

Portions of the design shown in broken lines are for illustrative purposes only and forms no part of the claimed design.

The claimed exposed surfaces are solid and each of three sections of the peripheral side surface being symmetrically identical. 

The ornamental design for a mechanical drive coupling, as shown and described. 